Player grand piano.



COOPER.

PLAYER GRAND PIANO.

APPLICATION FILED FEB. 11, 1907- Patented Aug. '16, 1910.

9 BHEETS SHE'P-T 1.

WITNESSES v lwelvron QATTZHNES SL 7 WQ 1?. COOPER. PLAYER GRAND PIANO.APPLIOATIONQFIL'ED FEB. 11, 1901.

Patented Aug. 16, 1910.

9 BHEETS-SHBET 2.

INVENTORY Z" 2. eh cmfi W y AT mvsrs.

IIVI

WITNESSES 0,

w. P. GOOPBR. v PLAYER GRAND PIANO; AEPLIOATION FILED FEB. 11, 1907.

Patented Aug. 16, 19 10.

9 SHEETS-SHEET 3.

' INVENTOP WITNESSES v. /7 ygf/xk. V

JNVENTOH 9' sums-sum: 4.

A TTOHNE YS.

Patented Aug. 16,1910.

W. I. COOPER PLAYER GRAND PIANO. APPLICATION III-1111 11311, 1907.967,330.

WITNESSES g0.

W. F. COOPER. PLAYER GRAND PIANO. I APPLIOATION FILED FEB. 11,1901.

7 Patented Aug. 16,1910

9 SHEETS-SHEETG.

oooooooooooooocjol ozooooooq INVENTOH 2M B) O H: a c o 0 t n R o I w M M1 o. m D I WITNESSES ATZOHNEYS. I

' W. F. COOPER.

PLAYER GRAND PIANO.

APPLICATION FILED FEB. 11, 1907.

Patented mg. 16,1910.

WITNESSES INVENTOH w. F. COOPER. PLAYER GRAN PIANO. A'PPLIOATION FILEDFEB. 11,1907.

Patented Aug. 16,1910.

7 T E o v H m v, H N E m: N 8 l/ H H. N 0 m v 9 W Y A W.-P. COOPER.PLAYER GRAND PIANO APPLICATION FILED FEB. 11', 1907.

. Patented Aug. 16,- 19101 9 8HEETB-SHEET 8.

9 EETS-SHEET y; 9

Patented Aug. 16,1910;

/V VE/VTO/? w. P. GOQPER. PLAYER GRAND PIANO.

APPLICATION FILED FEB. 11, 1907. I

W/TNESSE W- 15$ ,QITOHNEYS.

To all whom it may concern:

' P' NI ED sTArns gr NToFFIoE.

WILLIAM F COOPE R, F NOBWALK, OHIO, ASSIGNOR 'ro THE A. '.B CHASECOMPANY;

. PLAYER GRAND PIANO.

Be it known that I, lViLLuu F. Coornn, ascitizen ofthe United States,and a resident of Norwalk, in the county of Huron, State of Ohio. haveinvented a certain new and useful llayer Grand. Piano, of which thefollon'iug is a specification. I

My invention relates to mechanical mnsical instruments and moreespecially to a player grand: piano, and involves the pro- -be eitherplayed in the usual manner or mechanically.

Generally speali'ing, it is the object of my invention to provide agrand piano with attached playingmechanism, the whole beingconstructed'and arranged so that the playing mechanism will not injurethe appear ance of the piano, and so that the addition of the playingmechanism will not require changes in the form. or construction 0f;the

piano proper or interfere with convenient repair and adjustment of thepiano.

On the other hand, it IS an ob ect of my invention to provide anapparatus in which the player mechanism is normally securedto' the pianoframe or casing, while being readily removable therefrom to permitconvenient adjustment orfrepair of the player mechanism. In buildingpianos, and especially grand pianos, it is of very great importance thatthe apparatus have, as awhole, an

artistic appca'r-ance,'so that in applying playing mechanism to such-apiano oneis'obliged to meet something'more than theordinary problemsrelating to convenience, economy and efficiency. The apparatus must workwell and must be arranged soas to be readily repaired and adjusted,b,utinaddition, it must be so arranged as not to interfere with the artisticappearance of the piano. Thus the problem of providingan acceptable] and.an efficient-player grand piano is rendereddiflicult by thenecessitythat the maker is under to sacrifice none of the. efliciency ofthestandard .grand piano and to SaCIlfiCGllOIlfl of its capacity forready'repair and adjustment, while providing-a play ng mechanism of themost etlici'ent kind, and also readily repairable and adj usta-ble,without substantially altering the, appearance of the piano. Thus it isdesirable, and one of the specific. features of my invention, that thekey-board and piano action may be readily removed .from the piano bymoving it horizontally Specification of Letters Iatent. Patented; Aug,Application filed February 11, i901 Serial No. 356,701.

is illustrated in the accompanying;drawings.

A CORPORATION or OHIO.

forward from the key-bed, and I have, there "fore, so arranged andcombined the player mechanism with thepiano asto permitthi's tobe done.I

In accomplishingthe objects of my invention' I have disposed theprincipal parts of the mechanism of a pneumatic'iplaye'r hori zont-allyand have secured them" together in a relatively shallow structureindependently of the piano casing and then secure V structure beneathand back of the-kc board so that no part of it, except certain= eonnec-'tions to the treadles, extcndsfar'below the key-bed of the piano. I hayearrang'ed the apparatus to be divisible into two. main" parts. One .partcomprisesthe'pianocas ing and all of the ordln'ary pianopart'sex- .eeptthe'pedal support and pedals,-while the other part comprises theplayer'mechanism and the pedal support and pedals connected 7'15together independently ofthe" piano and Se? cnred as a unit to the pianocasing. This separable portion of the apparatusco'nnects with the pianoaction through operating membe'rs extending upwardly tlirough' tlie flt)key-bed of the piano. When the player and pedal support are secured tothe laI10 the. pedal support is a,substantialjdistance above the floorlevel. When it is. desired't'o remove the player, for purposes of repairor adjust- 8'5" ment,the player is detachedfrom the piano" casing and islowered to the floor leveli This brings all parts of the pl'ayer mech'-:anism below obstructing portions ofthe piano and permits theplayer"-mechanism as a whole to be moved horizontally from un-' derthepiano.

My invention involves generallythe few;

tures above set out andin additioritheretoq more specific features ofconstruction] and arran ement which are described:withjtlieir'. incumbentadvantages more fully heroine after; asare also'ce'rtainpreferential; fee tures of my invention. A

One specific embodiment-of my invention Figure 1' art piano casing andof th wh the, plaer, the separate casing or screen thereof ein shown' insection; Figs. 4 and 5 are top p n views of the left and rightliandhalvesog the player detached fromthe f:piano; F' s.

and -7 are views of the right I and left "a d halves respectively of theplayer in section and looking upward .19 he life! tailed sectionail viewon an enlarged scale of 1-7 of Fig. 1; Fig: 8 is a de-' the tracker hot,key bed and some of the op- .erating connedtions, the forward portionsof thefi re being taken on a line near the cen- Y ter 0 the piano, whilethe rear portions of I of the pedal suj)port and certain of the opthefigure are taken-on a line at one side of the p ano Figa is a detailedsectional view erating-connections'; and Fig. 10 is an en-v larged planview of several of the power neuma'tics and Operating connectionsthererom;

'One result Qlattained by my invention is that the piano casing and theordinary parts of the piano have not been altered in form orappearance'or their relation wlth each other in order to combine with them theparts of a player mechanism. These parts comprise a piano casin Asupported from ;legs, one of which 30' A 'i'sthe soundingborrd supportedand disthe .piano. Upon this, keybed the piano a'cin Fig.

is shown at A,- Fig. 2.-

osed in. the usual ma .iner within the casing elow'the stringsA B is thekeybediof tion rests loosely in the usual'manner so that itmayslide-transversely when the soft pedal is operated, and may slideforwardly when it is to be,talien out of the piano for repair .or.adjustment. The 'piano action (includes the keys C, the frame C and thecasting G? carrying the action parts as clearly indicated. 1. Aslisusualwith grand pianoswhen the piano 'action 1s to be removed,the fall boardA is detached from the casing, as

well as the keyrail A ,.thus removing all obstructions to the forwardmovement of the action. v q

Referrmg further to the usual and piano parts, a represents one of aseries of dampers resting upon the several stringsand adapted'to bemoved upward from the. strings by the, movement of the hinged and uponeach wire s secured a nu-t d'. It.

is by? the engagement of the moving parts of the player with these nutsd that the piano ct1on'1s operated by the player.

5 at the 'forwar I treadlesj E are hinged at their rear ends to .rodse-- which are plvotally secured at their.

support F, and, are thus in an unobstrusive oper j p v f fixed/bytherode which is hinged at e to the forward end of the treadles and'ismounted at i'ts other end in 'a hinged Sn 1 f sensed These wires are'securedto thevkeys at the rear ends thereof and are to operate the.

action by imparting an upward movement a ',to the rear of the key.

In order to limit the upward movement of the key I have provided a railsecured to the casting C and I- carry by this rail a number of stops 0one above each key, which stops are carried on the ends of threadedwires c each secured into threaded orifices in the rail. Each stop istherefore individuallyadjustable in posimanual-'playin of the piano thestop '0 end ofthe key is sulficient.,; but I have found that theadditional tion. It will be understood that in the individual adjustablestops thatI have de-" scribed above'the keys and back of the 'piv-,

' otal points thereof to be desirable whenfthe I player actsupwardl'yfrom the rearendof E represents the bellows: of

the pneumatic'player. It is, operated from the treadles 1E throughmechanicaLVactuating connections indicated in Fig. 1. -The free ends totlie-lower ends of "vertically disposed levers E These levers; arepivoted at e m a bracket secured to. the lyreior pedal position,beinghidden from view from the front of thepiano. The upper ends; ofthese levers E are connected to conne'ct ing rods E which'operatevbellcranks E",,whose .free ends are connected by hingedarm's'E" with members, E connected to the movable parts of the bellowsmechanism. The treadlgis are normally maintained in'ltheir upperposition by the springs E. The tive forward position of the treadlesport ajt e carried by the-pedal support I. I

The lower end of the rod 6 moves in'a nearly horizontal line from aposition within thepedal support and belbw the hinge e to apositionbackof the pedal support. In

order that the treadles and the rods 6 may be thrown up" to a forwardposition within the" pedal support when'desired, and with-- outnecessitating any, preliminary pressing down ofthe tread'les against thesprings E f I have constructed these parts as above described and havealso soqarranged the 1 point e and the lower end of the-rod e as tomakethis movement possible. ,Thus the length of the rod 0 added tothe-vertical distance between 6 and the lower end of rod 6' is equal tothe sum of the lengths of the treadlewlfl. and the rod 6. .By'thisconstruction and these relative dimensions it is only necessary for theo'perator'desiring to 13 2O lengths of the treadles E, the rods 0 and's' ,e and the vertical distance between the ilse'ithe piano for manualplaying, to lift upon the outer: end of the rod e regardless of therespect ve positions of the treadles and'the various parts will fol'dwithin the pedal support, being vertically disposed therein- (see Fig.9)..

It uvill ,be understood that the structure comprising'my inventionincludes the usual partssfofi a pneumatic player. Such parts 'areiperformmg the usual functions of such a player and the several partscooperate to- -,getherf to produce the proper movement of the powerpneumatics in the usual Way. I therefore-shall not attempt to describethe specific-construction of each of these varixfous'known parts ortheir pneumatic connecpneumatics isbackof thecenter line of' thispassage inorder, aswill ap ear, to leave; as

tions iyvitha other of these known parts,

Thefipower pneumatics are placed below the "keybed. of the. piano andclosely adjace nt th,ereto. The power pneumatics are in 'twox'parallellines extending across the piano, the several pneumatics of one seriesmuch room at the front 0 the pneumatics as possible for the tracker boxandmotor. By placing the, pneumatics horizontally and it ini a:relatively obscure position. The movablepart of each pneumatic isconnected to one end of a hinged diagonal lever 51,

the hinge of the lever being'in a bearing g on afixed support G? securedbeneath the passage'Bj-to the; keybed; The; free ends of the severalhinged levers g are secured 'to'the vertical wires or pitmen h, upon theeach! of these members is located so as to engage the nuts d carried bythe-key which topof which nuts h" are screwed so that each wire it withits nut hconstitutesan extensible upwardly extendingjmember' and the"particular pneumatic is. to operate.

Then, therefore, the air isexhausted from I any 'pneumaticathe upperside of that pneumatic is drawn down. pulling down one end of. thecorresponding: hinged lever g and pushingupwardly the other end' thereofwith theupwardly extending member secured thereto! One or both of thenuts '11" andh should be cappedwithf'f elt or other hinge to hinge. inthis manner I amv enabled "to place them veryclose to the lower surfaceof the keybed and thus assist in. ren-- deringathe player compact and inlocating non-resonant material. are therefore operated by the movementof the upwardly extending members in the passage from the keybed, thismovement be,- ing causedby the movement of the diagonal levers extendingin opposite directions from The various keys the pitmen 72tothepneumatics of the two series.- Each pneumatic operatesca keyat oneside of the pneumatic.

The power actuating members extending throughthe upward passage in thekeybed should be properly guided in their movement and to elfect this Ihave provided the slide 71, having an opening through which the nut itpasses and secured within the passage B of the keybed from asuitablesupport G By placing the guide within the passage B I am enabledto locate the power pneumatics closely adjacent to the lower surface ofthe keybed and thus contribute to the compactness andunobtrusiveness ofthe player that is so necessary in use with a grand piano.

By the construction I have thus far de scribed, I am able to adjust thepoint of engagement between the nuts cl" and h at the exact level of-thetop surface of the keybed. It isxnoti'desirable that this point of adesirable to have the point of engagement above the level of the keybedbecause this increases the downward movement ofthe.

player necessary before it can be removed from the piano.

piano action to have this-point of engage-c ment accurately at the levelof the top of the keybed. This feature of my invention, therefore,enables me to apply the player mechanism accurately to the piano action'andwwithout adding any construction that prevents the desired movementof the piano actionhorizontally from the keybed.

Moreover, it is desirable for purposes of accurate adjustment of theengagement be belowsuch' surface because then the piano action could notbe removed,

without moving all the keys, and it is not a top H is a casihg locatedbelow the power pneumaticsand which contains the pneu} maticsthat'arewcontrolledfrom the tracker box. and which in-turn control thepower pneumatics. Preferably the pneumatics in casing'H comprise primaryand secondary Y pneumatics. ,The ducts from the tracker boxrto the'pneumaticsuin casing- H' and the ducts from the pneumatics in casing Hto I the power: pneumatics are in the pneumatic boardH locatedbetweenthe power pneumatics and the-casing I represents the tempo o'rcontroller box suitably, connected by air ducts with the motor in theusual manner. J J are the ex "pression bellows whichiare connectedby air7 ducts withjhe power pneumaticsand with the tempo or controller box; Kis the motor regulator or a y equalizer a which is connected byair-cl th 1 .may. 'be swung downward; under 'the key;

also. carried thetake-up roll L.

flows E and with the tempo or controller box I.

These various controlling devices are lo .cated back of the keybed andat one side of --the main bellows in substantially the horizontal planeof the bellows.

The tracker L connected to the ducts leading to theprimary pneumaties-bymeans of flexible tubes Z and fixed tubes Z is carried in a tracker boxL in which are the supports for the music roll L and in which is Thistracker'box is hinged on pivots Z so that it may be either placed'in theoperative or playing'position shown in Figs' 1 and 8, 'or

I bedhof the piano to the position shown in Fig. 3.

Upon the tracker box are mounted various controllinglevers to bemanually operated while the player mechanism is in operation.

' At 'the righthand, side is the lever m which a connecting r 7 nects toavalve in the tempo-"or controlling operates a rock shaft 111/, the"rockingof which moves a connecting rod m trans verse'ly operatin abellcrank m from which m is operated and conbox I. -Carried by thetracker box' there is also a lever ml to operate the damper rail.

This'lever rocks the rod. 41' through which crank n is operated to actupon the connect-;

ing rod 1 The movement of this connecting rod operates the bellcranklever, 11. the

operation of which causes a downward movement. of the lever n securedtothe rockshaft' n upon the end of which is the crank-n" which pushes upthe connecting rod in? and engages and'lifts the crankv n at the 'end ofrockshaft n The rocking of this shaft n raises the upwardly proj ect1ngmemberm. which bears on the under side oft-the .d'amper rail a.Af'movement therefore of the lever n through the connecting mechanismdescribed lifts, the damper rail aand removes the dampers e from thestrings.

" This same result during the manual ope'r-fl ation of the piano isachieved by bearing upon the right-hand pedal N, which is connectedthrough a vertical rod N with a bellcrank lever N secured to the rock-shaft n be'foredescribed. When the player together with'the pedalsupport and pedals is separated from the piano the connecting mechanismto the damper rail above described is separated onthe line a, where theconnecting rod n engages the crank n", but when the various parts areassembled and secured together the connecting rod n and crank aregisteras described.

0 and 77 are the expression levers carried by the tracker. These operaterespectively the rock shafts o and 7), which are connected by rods .0and p respectively to the bell crank levers Y o and p respectively. Fromthese levers there arekrearwardlyexlending rods and P perate'valves 1nthe expression bellows J and J, Th

three bell crank levers m, 0 and 1) areascured one above another at onecorner of the piano. The left-hand or soft pedal of the pianoO shiftsthe-piano action tr'ansversely for the customary purpose- This g pedaloperates the vertical rod 0' throu h. whichthe rock shaft 0 isoperatedii T e rock shaft has a crank O at its end through which thevertical rod 0 is operated; The

movement of this rod 0' operates the bellcrank lever O, the free'end-ofwhich enters a slot in the keyframe C so that the downward movement ofthe pedal imparts a movement of the keyframe to the right,

When the player and the pedal support are removed from the piano, ashereinafter described, the connections between the. pedal 0 and thekey-frame are separated at the line 0, where there is a loose engagementbetween the vertical rod 0 and one. end of the bellcrank It will benoted that the pedals are each connected withvertical. rods whichoperate rock shafts extending transversely in oppo site directionsbeyond the pedal support and to opposite'sides of the piano where theyrespectively operate the keyframe and the damper board. This enablesthese connec tions to be made without interfering with. the space in thecenter of the piano and back of the edal support in which thepneuma-tyics,,bel 'ows,.etc., are to be placed. The mofi the piano in the presentinstance, andtim; mediately in front of the pneumatics," The motor isindicated at Iflits shaft" shownat p. This position of the moto is toris also located beneath the keybed offime the piano being. at the righthand side/of;

in conformity with the general objects/of the invention in that it" isclosely th'ljacent to the under side of the'keybed andin"'-fsubstantially the same horizontal planc-fas'. the remainingpartsof the player, while being located so that its shaft may be readilyconnected mechanically with the. mechanism in the tracker box by meansofthe' chain 11 All of the parts of the player mechanism are connectedtogether and are connected with the'pedal support independently of the Ia piano caslng. There is at .each'side of the player aside frame Q towhich '15 secured both the main bellowsand the-pneumatic board H.Running across the player and attached to the pneumatic board is a sillQ, (made hollow to form part of the air duct to the motor). 7 Secured tothis cross sill are the forwardly extending arms R at whose ends aremounted the pivots Z of the tracker box, the tracker box having arearward ex tension L mounted von such pivots-p The motor is secured bythe bracket r to one of the side bars Q and through a, bracket z" tooneof the horizontally extending arm s R.

bar B let'into the under side of the keybed ings. n theforwardly-extending arms? 1L 1-0 -of the piano. On the forward end ofthe side bars Q are bracketsQ fthrough which are orifices 1 to receivesimilar thumbscrews which screw into the piano keybed or plates letintothe. same. {Secured to the bellows board are two brackets T which act asa support for the pi-nots of the bell cranks E, These brackets haveorifices to receive thumbnuts which screw into a plate T which isattached to the arms of the spider of the piano. It will thus .be seenthat the player and pedal supports are dctachably secured to the pianoby the six thumbscrews described.

When it is desired to remove the player from the piano it is onlynecessary to'loosen these tluunbwercws and tl,|.e player may be lowereduntil the pedal support restsupon the floor. This only needs a movementequal to about the thickness of the keybed for 4 none of the fixed partsof the player extend p secured. tothe side frame of the player and abovethe keybed, the highest fixed points of the playerepeing the bracket Tand the nuts It. 11 1, therefore, the player has been -lowered to thisposition it may be moved horizoi-itally backward from beneath the casingof the piano.

' V represents acasingonscreen which is surrounds the back portion ofthe same so as to hide the bellows and-other portions of the mechanismfrom view. 'The upper edge of this scrcenentends a less distance abovethe lower edge of the surrounding piano casing than that which separatesthe .pedal support. from' the floor so that when the player is detachedand lowered the screen maybe moved horizontally from under the casing.Additional supports for the player when it is detached from the pianoare provided inthe form of legs W which are hinged to the player at wandordinarily lie horizontally within the casing.

In order that the movable supports of the player may accurately registerwith the movable parts ofthe piano action, I have provided dowels a;which roject upward from the side bars Q, anenter recesses formed in thekeybed of the piano. These ,dowels projecting upwardly from the playerguide the player to the exact position which.

it should occupy with relation to the piano.

1 have throughout referred to the appaarrangement which I have shown anratus described as a player grand piano and my invention broadlyandspecifically is peculiarly applicable thereto, since a number ofproblems are met with in the practical development of grand pianos thatare different from those met with in the application .to upright pianos,while some of-these. problems are different when applled to whai' aregenerally known as square planos. It

will be understood, however, that'I do not mean by the expression grandpiano to necessarily limit myself to the,precise form and detail ofpianos that aienow known as grand pianos, but desire to, include withinthe claims apparatus in which the particular form and details of thepiano may vary in some respects from the present known types of grandpianos provided that the substan- I tlal combination and mode ofoperatlonof the "claims are applicable thereto and em-,

bodied therein. I believe that I am the first to have developed apractical and commercial player grand piano in which are obtained theresults necessary to a proper player grand piano without, interferingwith the artistic appearance and the capacity of adjustment and repairof the piano and of I the player, and I, therefore, .do not desire to belimited to the specific construction and d described, my invention asset out in the appended claims being broader than such specificfeatures.

Having thus described my invention what I claim as new and desire toprotect by Letters Patent is 1. In a player grand piano, the bellows,

expression and tempo boxes, motor and pneu-' matic action, securedtogether and disposed to form a relatively flat and thin structure, andmeans for securing said structure. as a unit to the piano to liehorizontally partly beneath and partly back of the keybed of the piano.

l 2. In a player grand piano, the bellows,

expression and tempo boxes, motor and pneu-I matic action, securedtogether and disposed to tom: a relatively flat and thin structure,

and m ans for securing said structure as aQ unit to the piano to liehorizontally partly beneath and partly'back of the keybed of the piano,the extreme upper portion of said unitary structure being atsubstantially the level of the top of the key-bed.

3. The combination with a grand piano, of a player, includingbel1ows,-expression and tempo-boxes, the. pneumatic action, motor,

tracker box, rolls, and suitable pneumatic connections and mechanicaloperating connect1ons, means for secur ng all of Siftld parts togetherindependently of the piano casing,

and means for securing said player'as a unit to the piano as ahorizontally disposed player structure.

4. The combination with a grand piano, of

. of the piano casing, a pedal support secured a pneumaticplayertherefor having its various parts secured together independentlyto theplayer and having operating connectionsito the player, and meansfor securlng the "combined player and pedal support to the .piano inoperative relationwith the piano action. I

5.. A player grand piano comprisingtwo main parts, one part comprisingthe piano,

including its strings, sounding board, keys,

action and easing, the other comprising the player and the supports forthe piano pedals, and detachable connections securing the two main partstogether in operative relation.

6, A player'grand piano comprising. two main parts, one partcomprising-the piano,

. including its strings, sounding board, keys,

actionand casing, the other comprising the player'and the-supports forthe piano pedals, and detachable connections securing the two 1nainparts together in operative relation,

the player parts being so disposedas to per mit 'free separation of thetwo main parts by arelative vertical and horizontal -move-,

-. 'ment.

'7'; In a player grand piano, a main art including the piano casing,strings, soun ing board, keys, action, controlling. devices andmechanical "connections therefrom, another main part comprising-theplayerparts the pedal support,=-tl 1e pedals and actuating con-'vnections therefrom, and: means forv securing the two main parts togetherwith the piano action in operative relation to'the player and the pedalconnections in operative relation .to

the mechanical connections from the con trolling devices. I

8 In a player grand piano, a player mechanism detachable from the mainparts of thepiano, a pedal support secured to said mechanism,controlling devices in the piano, and -mechan1calconnections from thecontrolling devices and from the pedals, the two sets of mechanicalconnections being positioned to register when the player mechanism issecured in operative position.

" 9. In a player grand piano, thecombination with the piano of poweractuated me1n-- berssecured beneath the key bed of the piano andextending upwardly through the keybed, and operating members for thepianoaction carried above the key-bed of the piano, said power actuatedmembers and action operating members loosely engaging,

cach other along a line substantially at the upper level of'the key-bed.I ,i 10. In a player grand piano, the combination withthe piano of poweractuated 'mem-' bers secured beneath the key-bed ofpjthe piano andextending upwardly throughthe key-bed, operating members for the piano.action carried above the'key-bed of the piano, said power actuatedmembers and action operating members loosely engaging keysabovesaid'jpassagc, upwardly extendeacli otherralong a linesubstantially at the" upper-levelof the key-bed, and means forindividually adjusting the pointbfem'gageri.v ,mcnt between each poweractuated member member.

and the corresponding' action operating- 11. In a player grand piano,the

I tion with the piano of power actuated mem v bers secured beneaththekey-bed of the piano and extending upwardly. through the r key-bed,opera-ting members for the pian. action carried above the key-bed of. thpiano, said power actuated -members and action operating members looselyengaging: each other along a ,line substantially at the upper level ofthe key-bed, means '-.for indies vidually adjusting the position of theengag- Q ing ends of the power actuated members,

and means for individually adjusting the engaging ends of the actionoperating anemers. l

'12. Ina player piano, the key-bed thereof power pneumaticssecured belowthe key-M bed, .adjustably extensible members operated by said neumaticsextending upward;

through thekey-bed, and adjustably extens sible members secured to theseveral piano keys and extending downward to engage' the' pneumaticallyoperated members.

13. In a player grand piano, thecomhinin' bed of two'series of powerpneumatics each arranged horizontally-beneath the key bedf the membersof each series lying" side byside in two parallel lines extending acrossthe piano, and members. operated by the tion with the piano and itsaotion'andkey-nseveral pneumat-ics extending "upwardly through thekey-bed.

14. In a player grand piano, the combina I tion with the piano and itsaction and key bed of two series of power pneumatics each arrangedhorizontally beneath the key-bed, the members of each series lyingsideby'. side' in two parallel lines extending across the piano, themembers of one series lying hinge to hinge with the members of the"other series, and members operated by the several pneumati'cs throughthe key-bed.

15. I a player grand piano, the combinaextending upwardly I tion withthe piano and the keys and'keyboard thereof, having a passage therethrough beneath the keys, of downwardly extendmg' nembers' secured tothe several ing members passingfthrough said passage and engaging thedownwardly extending members,- power pneumatics, each *horizon tallydisposed beneath the key-bed, lying side by sidev in a line.extendingacross the members.

; 16. In a player grand piano, the combinaQ iso tion with the piano andthe keys andJkey,-

. 125 piano, and-,connectlons between sa1d pneumatics and theseveralupwardly extending board thereof, having a passage there- .and engagingthe downwardly extending members, two series of power pneumatics'extending across the p ano beneath the key bed, the members of eachseries lying side by side and the members of one series lying end on tothe members of the other series,

"and connections between the individual neumatics and the severalupwardly extending members.

17. In a player grand piano, the combination with the piano and the keysand keyboard thereof, having a passage there through beneath the keys,of downwardly; extending members secured to the several keys above saidpassage, upwardly extending members passing through said passage andengaging the downwardly extending members, two series of powerpneumatics extending across the piano beneath the keybed, the members ofeach series lying side by side and the members of one series lying hingeto hinge with the members of the other series, and connections betweenthe individual pneumatics and the several" upwardly extending members.

18. In a player grand piano, the combination of player actuated membersbeneath the key-bed ofsaid piano and extending u wardly through thekey-bed to substantial y the upper level of said key-bed, and pianoactuating members contacting with' said player actuated members atsubstantially the upper level of said key-bed.

19. In a player grand piano,'the key-bed having a vertical passagetherein, vertically movable action operatingmem'bers passing operatingmembers.

upward through said passage, a transversely extending support beneathsaid passage, a series of power pneumatics lying on each side of saidsupport and a lever secured to each pneumatic pivotally mounted uponsaid support and connected to one of the action 20. In a player grandpiano, the keys thereof and the key-bed having a vertical passage belowthe rear ends of the keys, two series of power pneumatics beneath thekey-bed, the members of one series lying end to end with the members ofthe other series, the center line between the two series being back ofthe center line of said passage, and operating connections from theseveral pneumatics passing upward through said. passage tosaid keys.

21. In: a player grand piano, the piano keys, the keybed with a verticalopeningbeheath the rear of the keys, two series of horizontally disposedpow'erqjneumatics be- .neath the key-bed and with the center line'between the series located rearward of the 'actuating'members to thepneumatics 0 ,th

center-dine; bf said passage, 7 verticallyable key amt-uatin'gmembersfex ndi ward through said;;pas'sage,gau I vers connecting thekeygjac'tiiating alternately withi .ics.

ferent series.

'22. In a player grand-p n] th 1;? the key-bed having yer't al 85832neath the keys, key. actuatin' I, saidpassage, two-series'of power ,pnbelow the key-bed, each'pneumatie b g 1st erally displaced withrelation. to} and diagonal hinged levers extending nately forward andbackward fromjth'ei' ke two series. A 23. In a vplayer grand piano, thecombination with the keys and thefkeybed hay? ing a passage therethrouh, downwardly-- ex+ tending members screws to the keys, pneu= 5matically operated threaded memberssecured beneath the key-bed andpassing-mp: wardly .into said passage andnuts screwed upon the threadedends of said membersand loosely engaging the downwardly extending 199:"members. v 4

24. In a player grand iano, thecombi nation with the keys and e'y-boardhaving I a passage therethrough beneath the keys,=of

downwardly extending members securedto: 'the several keys above saidpassage',=,up'-3 wardly extendingmembers passing through saidpassage andengaging the downwardly '1- extending members, power pneumat-ics ',jeach3 horizontally disposed and all inYt-hej-same horizontal plane closelyadjacent to the botf tom of the key-bed, and connections between I 5said neumatics and the several upwardly extending members.

. y t 25. In a player grand piano, the key-bed i165 and casing thereof,the piano action includi 1 5 ing the key-frame, keys and. actiqn partsmovable horizontally forward up on the keybed, the player detachably'secured to the piano with operating members passing up} 11(j) wardthrough the key-bed, said player being movable downward from the key-bedwhen detached, and downwardly. extending members secured to the keys andengaging said operating members.

26. In a player grand piano, the "piano casing, strings, sounding boardand piano actionseeured together to-formjbit unitary structure, theplayer parts and ,iileans' for securing the same together independently120 of the piano to form another unitary'structure', means fordetachably securing the two structures together, and verticalprojections on one of said structures fitting vertically disposedrecesses in the other of said struc 2 tures v 27; In a' -player grandpiano, the piano casing, strings,-sounding board and piano actionsecured together to form a unitary structure, the player parts. andmeans for 1 securing the same together independently of the piano toform another unitary structure, means for detachably securing the twostruc tures together, and upwardly projecting dowels on said playeradapted to enter orifices in the key-bed of the piano.

28. In a, layer grand piano, the key-bed thereof, a vp ayer action belowthe same and suitable actuating connections therefrom to the pianoaction, a bellows mechanism be- ,hind 'said action, a motor beneath thekeybed and in front of thepl ayer action, and

a tracker'box supported from a oint beneath the key-bed and at one si eof the motor. U

29. In a player grand piano, the key-bed thereof, the bellows-mechanismand expresof the same, the ?power neumatics all dis-' 3 posed in thesame horizontal plane forward sion and tempo boxes secured at the rearof the rear of the key-bed, and the motor below the key-bed and in front.of the power Pneumatics, and the tracker-box supported fat :1 pointbelow the key-bedand at one-side I of the motor. a

30. In a player grand thereof, the bellows mechanism and expressidn andtempo boxes seeured at the rear of the same, the power neumatics alldisposed 111112116 same horizontal plane forward of the key-bed an'd'infront'of the power pneu matics, a trackerbox, anda movable mount-t ingfor the sameat one side of the motor adapted to permit movementof thetracker box from an'tobscure position beneath the rear of the key-bed,and the motor'below the key-'bed-to an operative position in the line Iof vision of the operator. i 'Intestimony whereof,

Y Witnesses:

A. DALY,

EDWIN SEGER.

I have signed my name to this speclfication, 1n the presence of twosubscribing wltnesses.

\. WILLIAM fr. ooornrti t 25 pi'aino, the key-bed

